//public class test3 {
//    public static void main(String[] args) {
//        String talk = "md你tm真nmsb";
//        String arr[]={"md","tm","nm","sb"};
//        for (int i = 0; i < arr.length; i++) {
//            talk = talk.replace(arr[i],"**");
//        }
//        System.out.println(talk);
//    }
//}
//


public class test3 {
    public static void main(String[] args) {
        StringBuilder sb = new StringBuilder("abc");
        System.out.println(sb.capacity());
        System.out.println(sb.length());

    }

}